Triassic
geo:time:period:triassicTriassic Period (251.9–201.4 Ma): recovery from Permian extinction; first dinosaurs (~230 Ma); first mammals; Pangaea begins to rift; ends with Triassic–Jurassic extinction.
Triassic Period (251.9–201.4 Ma): recovery from Permian extinction; first dinosaurs (~230 Ma); first mammals; Pangaea begins to rift; ends with Triassic–Jurassic extinction.